Method for transmitting data, terminal device and network device

ABSTRACT

The present disclosure discloses a method for transmitting data, a terminal device, and a network device. The method includes: a first terminal device receives indication information transmitted by a network device, where the indication information is for indicating a transmission band for transmitting the data; the first terminal device determines a numerology for transmitting the data according to the transmission band; the first terminal device transmits the data to the network device or receives the data transmitted by the network device on the transmission band according to the numerology. Therefore, the method, the terminal device, and the network device according to the present disclosure can achieve, with different numerologies, scheduling of data transmissions that are based on different transmission bands, thereby increasing flexibility of control signaling design. Furthermore, downlink signaling overhead can be saved.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of International Application No.PCT/CN2016/092103, filed on Jul. 28, 2016, which is hereby incorporatedby reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communications and, moreparticularly, to a method for transmitting data, a terminal device, anda network device.

BACKGROUND

In the fifth generation mobile communication technology (5G), userequipment (User Equipment, “UE” for short) may support varieties ofdifferent numerologies in one carrier. These different numerologies maybe multiplexed by means of frequency division multiplex (FrequencyDivision Multiplex, “FDM” for short). In the same transmission timeinterval (Transmission Time Interval, “TTI” for short), differentfrequency domain resources may be assigned for data transmission that isbased on different numerologies, For instance, for a long term evolution(Long Term Evolution, “LTE” for short) system, a bandwidth of asubcarrier is 15 kHz and a symbol has a width of 1/14 ms. However, a 5Gcommunication system mainly differs from a 4G communication system inthat the 5G system can support the data transmission that is based ondifferent numerologies, and a 5G terminal can also support the datatransmission that is based on different numerologies, for instance, abandwidth of the subcarrier of the current 5G system may be 15*2^(n) Hz(n is a non-negative integer). Therefore, how to schedule datatransmission that is based on different numerologies is an urgentproblem to be solved,

SUMMARY

Embodiments of the present disclosure provide a method for transmittingdata, a terminal device and a network device, which solve the problemabout how to schedule data transmission that is based on differentnumerologies.

In a first aspect, a method for transmitting data is provided,including:

receiving, by a first terminal device, indication informationtransmitted by a network device, where the indication information is forindicating a transmission band for transmitting the data; determining,by the first terminal device, a numerology for transmitting the dataaccording to the transmission band; and transmitting, by the firstterminal device, the data to the network device on the transmission bandaccording to the numerology, or receiving, by the first terminal device,the data transmitted by the network device on the transmission bandaccording to the numerology.

In this way, scheduling of data transmission that is based on differenttransmission bands may be achieved with different numerologies, whichincrease flexibility of control signaling design.

Furthermore, since the terminal device does not need to receiveinformation that is indicative of the numerology used in the currentdata transmission and is transmitted by the network device, downlinksignaling overhead can be saved.

As another embodiment, before the determining, by the first terminaldevice, the numerology for transmitting the data according to thetransmission band, the method further including: receiving, by the firstterminal device, configuration information broadcasted by the networkdevice, where the configuration information includes a firstcorrespondence relationship between the transmission band and thenumerology; where the determining, by the first terminal device, thenumerology for transmitting the data according to the transmission bandincludes: determining, by the first terminal device, the numerology fortransmitting the data according to the transmission band and the firstcorrespondence relationship between the transmission band and thenumerology.

In an embodiment, the network device may broadcast the configurationinformation in a physical downlink control channel (PDCCH),

It will be appreciated that the correspondence relationship between thenumerology and the transmission band may be determined by the networkdevice, or may be predetermined between the network device and theterminal device.

As another embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the network device may broadcast the configurationinformation according to a specific time period, and the correspondencerelationship between the transmission band and the numerology includedin the configuration information broadcasted within each time period maydifferent.

As another embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

As another embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode, after the determining, by the first terminal device, thenumerology for transmitting the data according to the transmission band,the method further including: determining, by the first terminal device,a filtering mode corresponding to the numerology according to thenumerology and the second correspondence relationship between thenumerology and the filtering mode., where the transmitting, by the firstterminal device, the data to the network device on the transmission bandaccording to the numerology, or receiving, by the first terminal device,the data transmitted by the network device on the transmission bandaccording to the numerology includes: processing, by the first terminaldevice, the data according to the filtering mode, and transmitting, bythe first terminal device, the processed data to the network device onthe transmission band according to the numerology; or receiving, by thefirst terminal device, the data transmitted by the network device on thetransmission band according to the numerology, and processing, by thefirst terminal device, the received data according to the filteringmode.

As another embodiment, the filtering mode includes at least one of: atype of a baseband filter, a parameter of the baseband filter, a usedfiltered waveform, and a parameter of the filtered waveform.

As another embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

That is to say, the network device may directly indicate the startposition and the end position of the transmission band, which may alsoindicate a relative position of a scheduled resource in a region of aconfigured numerology for the terminal device, without indicating aposition of the scheduled resource in the entire carrier.

As another embodiment, a guard band is included between the transmissionband and a transmission band indicated by the network device for asecond terminal device.

The high frequency end and the low frequency end of the guard band arerespectively adjacent to a transmission band used for data transmittedbased on different numerologies, and the terminal device would nottransmit and receive the data on the guard band.

In this way, through configuring the guard band, mutual interferencegenerated between data transmissions based on different numerologies isavoided.

As another embodiment, a bandwidth of the guard band is an integermultiple of the minimum subcarrier spacing supported by the networkdevice.

As another embodiment, the numerology includes a subcarrier spacing.

In a second aspect, a terminal device is provided, which can be used toimplement various processes performed by the terminal device in themethod for transmitting data described above in the first aspect andvarious implementations. The terminal device includes a transmissionmodule and a determining module. The transmission module is configuredto receive indication information transmitted by a network device, wherethe indication information is for indicating a transmission band fortransmitting the data; and the determining module is configured todetermine a numerology for transmitting the data according to thetransmission band; the transmission module is further configured totransmit the data to the network device or receive the data transmittedby the network device on the transmission band according to thenumerology determined by the determining module.

In a third aspect, a terminal device is provided, which can be used toimplement various processes performed by the terminal device in themethod for transmitting data described above in the first aspect andvarious implementations. The terminal device includes a processor and atransceiver. The transceiver is configured to receive indicationinformation transmitted by a network device, where the indicationinformation is for indicating, a transmission band for transmitting thedata; and the processor is configured to determine a numerology fortransmitting the data according to the transmission band; thetransceiver is further configured to transmit the data to the networkdevice or receive the data transmitted by the network device on thetransmission band according to the numerology determined by thedetermining module.

In a fourth aspect, a method for transmitting data is provided,including: determining, by a network device, a transmission band fortransmitting the data; transmitting, by the network device, indicationinformation to a first terminal device, where the indication informationis for indicating the transmission band so that the first terminaldevice determines a numerology for transmitting the data according tothe transmission band: and receiving, by the network device, the datatransmitted by the first terminal device on the transmission band ortransmitting, by the network device, the data to the first terminaldevice on the transmission band,

Therefore, the terminal device may learn the numerology for transmittingthe data according to the transmission band indicated by the networkdevice, without receiving the numerology used for the currentlyperformed data transmission transmitted by the network device, thusdownlink signaling overhead can be saved,

As another embodiment, before the transmitting, by the network device,the indication information to the first terminal device, the methodfurther including: determining, by the network device, a firstcorrespondence relationship between the transmission band and thenumerology; and broadcasting, by the network device, a configurationinformation, where the configuration information includes the firstcorrespondence relationship so that the first terminal device determinesthe numerology for transmitting the data according to the transmissionband and the first correspondence relationship.

In an embodiment, the network device may broadcast the configurationinformation in a physical downlink control channel (PDCCH).

It will be appreciated that the correspondence relationship between thenumerology and the transmission band may be determined by the networkdevice, or may be predetermined between the network device and theterminal device.

As another embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the network device may broadcast the configurationinformation according to a specific time period, and the correspondencerelationship between the transmission band and the numerology includedin the configuration information broadcasted within each time period maydifferent.

As another embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

As another embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode so that the first terminal device determines a filteringmode for processing the data according to the second correspondencerelationship between the numerology and the filtering mode; before thebroadcasting, by the network device, the configuration information, themethod further including; determining, by the network device, the secondcorrespondence relationship between the numerology and the filteringmode.

As another embodiment, the filtering mode includes at least one of: atype of a baseband filter, a parameter of the baseband filter, a usedfiltered waveform, and a parameter of the filtered waveform,

As another embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

That is to say, the network device may directly indicate the startposition and the end position of the transmission band, which may alsoindicate a relative position of a scheduled resource in a region of aconfigured numerology for the terminal device, without indicating aposition of the scheduled resource in the entire carrier.

As another embodiment, a guard band is included between the transmissionband and a transmission band indicated by the network device for asecond terminal device.

As another embodiment, a bandwidth of the guard band is an integermultiple of the minimum subcarrier spacing supported by the networkdevice.

As another embodiment, the numerology includes a subcarrier spacing.

As another embodiment, the determining, by the network device, thetransmission band for transmitting the data includes: determining, bythe network device, the numerology for transmitting the data frompredefined multiple numerologies.

In a fifth aspect, a network device is provided, which can be used toimplement various processes performed by the network device in themethod for transmitting data described above in the fourth aspect andvarious implementations. The network device includes: a determiningmodule configured to determine a transmission band for transmitting thedata; and a transmission module configured to transmit indicationinformation to a first terminal device, where the indication informationis for indicating the transmission band determined by the determiningmodule so that the first terminal device determines a numerology fortransmitting the data according to the transmission band; where thetransmission module is further configured to receive the datatransmitted by the first terminal device or transmit the data to thefirst terminal device on the transmission band determined by thedetermining module.

In a sixth aspect, a network device is provided, which can be used toimplement various processes performed by the network device in themethod for transmitting data described above in the fourth aspect andvarious implementations. The network device includes: a processorconfigured to determine a transmission band for transmitting the data;and a transceiver configured to transmit indication information to afirst terminal device, where the indication information is forindicating the transmission band determined by the processor so that thefirst terminal device determines a numerology for transmitting the dataaccording to the transmission band; where the transceiver is furtherconfigured to receive the data transmitted by the first terminal deviceor transmit the data to the first terminal device on the transmissionband determined by the processor.

In a seventh aspect, a method for transmitting data is provided,including: dividing, by a network device, an available band resourceinto at least one transmission band; determining, by the network device,a correspondence relationship between the at least one transmission bandand at least one numerology; and broadcasting, by the network device, aconfiguration information, where the configuration information includesthe correspondence relationship.

In this way, scheduling of data transmission that is based on differenttransmission bands may be achieved with different numerologies, whichincrease flexibility of control signaling design.

Furthermore, by broadcasting division of the band resource and thenumerology used when transmitting data on the divided transmission band,the network device allows the terminal device to not need to receiveinformation that is indicative of the numerology used in the currentdata transmission and is transmitted by the network device, therebydownlink signaling overhead can be saved.

Specifically, the network device may divide an available band resourceinto at least one transmission band for transmitting the data accordingto information such as the number of terminal devices within itscoverage, the coverage of the terminal devices, information about a keyband in a carrier, a type of a currently performed service, or a type ofcurrently transmitted data. Each transmission band corresponds to onenumerology, and the numerologies used for data transmission on thesetransmission bands are the numerologies corresponding to thetransmission bands. The numerologies used for data transmission on thesetransmission bands may be the same or different, and these transmissionbands may or may not be adjacent to each other.

In an embodiment, the network device may broadcast the configurationinformation in a physical downlink control channel (PDCCH).

As another embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

As another embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the network device may broadcast the configurationinformation according to a specific time period, and the correspondencerelationship between the transmission band and the numerology includedin the configuration information broadcasted within each time period maydifferent.

As another embodiment, the at least one transmission band is configuredfor transmitting uplink data and/or downlink data.

As another embodiment, the configuration information further includes acorrespondence relationship between the at least one numerology and atleast one filtering mode.

As another embodiment, the filtering mode includes at least one of: atype of a baseband filter, a parameter of the baseband filter, a usedfiltered waveform, and a parameter of the filtered waveform.

As another embodiment, a guard band is included between the at least onetransmission band.

The high frequency end and the low frequency end of the guard band arerespectively adjacent to a transmission band used for data transmittedbased on different numerologies, and the terminal device would nottransmit and receive the data on the guard band.

In this way, through configuring the guard band, mutual interferencegenerated between data transmissions based on different numerologies isavoided.

As another embodiment, a bandwidth of the guard band is an integermultiple of the minimum subcarrier spacing supported by the networkdevice.

As another embodiment, the numerology includes a subcarrier spacing.

In an eighth aspect, a network device is provided, which can be used toimplement various processes performed by the network device in themethod for transmitting data described above in the seventh aspect andvarious implementations. The network device includes: a determiningmodule configured to determine a transmission band for transmitting thedata; and a transmission module configured to transmit indicationinformation to a first terminal device, where the indication informationis for indicating the transmission band determined by the determiningmodule so that the first terminal device determines a numerology fortransmitting the data according to the transmission band; where thetransmission module is further configured to receive the datatransmitted by the first terminal device or transmit the data to thefirst terminal device on the transmission band determined by thedetermining module.

In a ninth aspect, a network device is provided, which can be used toimplement various processes performed by the network device in themethod for transmitting data described above in the seventh aspect andvarious implementations. The network device includes: a processorconfigured to determine a transmission band for transmitting the data;and a transceiver configured to transmit indication information to afirst terminal device, where the indication information is forindicating the transmission band determined by the processor so that thefirst terminal device determines a numerology for transmitting the dataaccording to the transmission band; where the transceiver is furtherconfigured to receive the data transmitted by the first terminal deviceor transmit the data to the first terminal device on the transmissionband determined by the processor.

In a tenth aspect, a computer readable storage medium is provided, whichhas a program stored thereon that allows a network device to perform anymethod for transmitting data described above in the first aspect andvarious implementations thereof.

In an eleventh aspect, a computer readable storage medium is provided,which has a program stored thereon that allows a terminal device toperform any method for transmitting data described above in the fourthaspect and various implementations thereof.

In a twelfth aspect, a computer readable storage medium is provided,which has a program stored thereon that allows a network device toperform any method for transmitting data described above in the seventhaspect and various implementations thereof.

BRIEF DESCRIPTION OF DRAWINGS

In order to describe technical solutions of embodiments of the presentdisclosure more clearly, accompanying drawings used in the descriptionof embodiments of the present disclosure will be briefly describedhereunder. Obviously, the described drawings are merely some embodimentsof present disclosure. For persons of ordinary skill in the art, otherdrawings may be obtained based on these drawings without any creativeeffort.

FIG. 1 is a schematic diagram of an application scenario according tothe present disclosure.

FIG. 2 is a flow interaction diagram of a method for transmitting dataaccording to an embodiment of the present disclosure.

FIG. 3 is a schematic diagram of data transmission based on differentnumerologies without a guard band and with a guard band.

FIG. 4 is a flow interaction diagram of a method for transmitting dataaccording to another embodiment of the present disclosure.

FIG. 5 is a flow interaction diagram of a method for transmitting dataaccording to another embodiment of the present disclosure.

FIG. 6 is a flow interaction diagram of a method for transmitting dataaccording to another embodiment of the present disclosure.

FIG. 7 is a schematic flowchart of a method for transmitting dataaccording to another embodiment of the present disclosure.

FIG. 8 is a structural block diagram of a terminal device according to aembodiment of the present disclosure.

FIG. 9 is a structural block diagram of a terminal device according toan embodiment of the present disclosure.

FIG. 10 is a schematic structural diagram of a system chip according toan embodiment of the present disclosure.

FIG. 11 is a structural block diagram of a network device according toan embodiment of the present disclosure.

FIG. 12 is a structural block diagram of a network device according toan embodiment of the present disclosure.

FIG. 13 is a schematic structural diagram of a system chip according toan embodiment of the present disclosure.

FIG. 14 is a structural block diagram of a network device according toanother embodiment of the present disclosure.

FIG. 15 is a structural block diagram of a network device according toanother embodiment of the present disclosure.

FIG. 16 is a schematic structural diagram of a system chip according toanother embodiment of the present disclosure.

DESCRIPTION OF EMBODIMENTS

The technical solutions in the embodiments of the present disclosurewill be described hereunder clearly and completely with reference to theaccompanying drawings in the embodiments of the present disclosure.Obviously, the described embodiments are only a part of embodiments ofthe present disclosure, rather than all embodiments of the presentdisclosure. All other embodiments obtained by persons of ordinary skillin the art based on the embodiments of the present disclosure withoutany creative effort shall fall into the protection scope of the presentdisclosure.

It will be appreciated that the technical solutions in the embodimentsof the present disclosure is applicable to various communicationsystems, for example, current communication systems such as globalsystem of mobile communication (Global System of Mobile communication.“GSM” for short), a code division multiple access (Code DivisionMultiple Access, “CDMA” for short) system, a wideband code divisionmultiple access (Wideband Code Division Multiple Access, “'CDMA” forshort) system, a general packet radio service (General Packet RadioService, “GPRS” for short) system, a long term evolution (Long TermEvolution, “LTE” for short) system, and a universal mobiletelecommunication system (Universal Mobile Telecommunication System,“UMTS” for short), and especially applicable to future 5G systems.

The terminal device in the embodiments of the present disclosure mayalso be referred to as user equipment (User Equipment, “UE” for short),an access terminal, a user unit, a user station, a mobile station, amobile platform, a remote station, a remote terminal, a mobile device, auser terminal, a terminal, a wireless communication device, a user agentor a user device. The access terminal may be a cellular phone, acordless phone, a session initiation protocol (Session InitiationProtocol, “SIP” for short) phone, a wireless local loop (Wireless LocalLoop, “WLL” for short) station, a personal digital assistant (PersonalDigital Assistant, “PDA” for short), a handheld device with wirelesscommunication capabilities, a computing device or other processingdevices connected to a wireless modem, a vehicle-mounted device, awearable device, a terminal device in a future 5G network, a terminaldevice in a future evolved public land mobile network (Public LandMobile Network, “PLMN” for short), or the like.

The network device in the embodiments of the present disclosure may be adevice for communicating with a terminal device, where the networkdevice may be a base station (Base Transceiver Station, “BTS” for short)in GSM or CDMA, or may be a base station (NodeB, “NB” for short) in theWCDMA system, or may be an evolved base station (Evolutional NodeB,“eNB” or “eNodeB” for short) in the LTE system, or may be a wirelesscontroller in a cloud radio access network (Cloud Radio Access Network,“CRAN” for short) scenario. Alternatively, the network device may be arelay station, an access point, a vehicle-mounted device, a wearabledevice, and a network device in a future 5G network or a network devicein a future evolved PLMN network or the like.

FIG. 1 is a schematic diagram of an application scenario according tothe present disclosure. The communication system in FIG. 1 may include anetwork device 10 and a terminal device 20. The network device 10 isconfigured to provide the terminal device 20 with communication servicesand access a core network. The terminal device 20 accesses the networkby searching for a synchronization signal, a broadcast signal and otherstransmitted by the network device 10, thereby performing communicationswith the network. Arrows as shown in FIG. 1 may representuplink/downlink transmission performed via a cellular link between theterminal device 20 and the network device 10. According to theembodiments of the present disclosure, flexibility of control signalingdesign can be improved by scheduling data transmission that is based ondifferent numerologies with different DCI formats.

FIG. 2 shows a flow interaction diagram of a method for transmittingdata according, to an embodiment of the present disclosure. The networkdevice 10 and the terminal device 20 are shown in FIG. 2. As shown inFIG. 2, a specific process for data transmission includes:

210, the network device 10 determines a transmission band fortransmitting the data.

Specifically, the network device 10 configures, for the terminal device20, in multiple transmission bands, a transmission band for datatransmission of the terminal device 20. For instance, the network device10 may divide an available band resource into at least one transmissionband that can be used for transmitting the data according to informationsuch as the number of terminal devices within its coverage, the coverageof the terminal devices, information about a key band in a carrier, atype of a currently performed service, or a type of currentlytransmitted data. Each transmission band corresponds to one numerology,and numerologies used for data transmission on these transmission bandsare the numerologies corresponding to the transmission bands. Thenumerologies used for data transmission on these transmission bands maybe the same or different, and these transmission bands may or may not beadjacent to each other. After the network device 10 configures, for theterminal device 20, a transmission band for transmitting the data, theterminal device 20 can determine a numerology used for transmitting thedata according to the transmission band.

In this way, scheduling of data transmission that is based on differenttransmission bands may be achieved with different numerologies, whichincrease flexibility of control signaling design.

Furthermore, since the terminal device does not need to receiveinformation that is indicative of the numerology used in the currentdata transmission and is transmitted by the network device, downlinksignaling overhead can be saved.

In an embodiment, a guard band is included between the transmission bandand a transmission band indicated by the network device 10 for anotherterminal device, such as a terminal device 30, and the terminal device20 does not transmit the data on the guard band. The high frequency endand the low frequency end of the guard band are respectively adjacent toa transmission band used for data transmitted based on differentnumerologies, and the terminal device 20 will not transmit and receivethe 5G signal in the band area currently.

Especially, when the numerology corresponding to the transmission bandconfigured by the network device 10 for the terminal device 20 isdifferent from the numerology corresponding to the transmission bandconfigured by the network device 10 for the terminal device 30, then aguard band may be interposed between the two transmission bands, onwhich the terminal device does not transmit the data. Therefore,interference generated during data transmission using differentnumerologies on the two transmission bands can be avoided.

For instance, FIG. 3 shows a schematic diagram of data transmissionbased on different numerologies without a guard band and with a guardband. Taking FIG. 3 as an example, without the guard band, mutualinterference is easily generated when data is transmitted on adjacenttransmission bands using different numerologies. For instance, as shownin FIG. 3, when subcarrier spacings used for data transmission on twoadjacent transmission bands are respectively 30 kHz and 15 kHz, duringthe data transmission on the two adjacent transmission bandsrespectively using the two subcarrier spacings, interference occurs indata transmission on two adjacent transmission bands using differentsubcarrier spacings. However, with the guard band, for instance, asshown in FIG. 3, when subcarrier spacings used for data transmission ontwo different transmission bands are respectively 30 kHz and 15 kHz,during the data transmission on the two transmission bands respectivelyusing the two subcarrier spacings, the two transmission bands occupiedby data transmission using different numerologies are separated by aguard band on which no data transmission is performed, thus mutualinterference between different subcarrier spacings will not begenerated. The bandwidth of guard band as shown in FIG. 3 is 60 kHz.

In this way, through configuring the guard band, mutual interferencegenerated between data transmissions based on different numerologies isavoided.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device 10.

Specifically, since different numerologies may be supported on the samecarrier in the 5G system, the bandwidth of the guard band should cover atransmission band used for data transmission based on differentnumerologies. Therefore, when the network device 10 determines thebandwidth of the guard band, the minimum carrier spacing supported bythe network device 10 should be treated as the unit. Taking FIG. 2 as anexample, the communication system supports subcarrier spacings with 15kHz and 30 kHz. When the network device 10 determines the bandwidth ofthe guard band, 15 kHz should be treated as a basic unit, that is tosay, the bandwidth of the guard band should be a bandwidth which is aninteger multiple of 15 kHz and less than a target transmission band. Ifthe guard band is located at both the low frequency end and the highfrequency end of the target transmission band, then the bandwidth of thestart and end positions of the portion of the guard band located at thelow frequency end and the bandwidth of the start and end positions ofthe portion of the guard band located at the high frequency end shouldboth be an integer multiple of 15 kHz.

In an embodiment, the numerology includes a subcarrier spacing.

The subcarrier spacing refers to a frequency spacing between adjacentsubcarriers, such as 15 kHz, 60 kHz, and the like. Parameters in thenumerology include, but are not limited to the subcarrier spacing, forinstance, other parameters also may be included in the numerologyincluded in the configuration information transmitted by the networkdevice 10 to the terminal device 20, such as the number of subcarriersunder a specific bandwidth, the number of subcarriers in a physicalresource block (Physical Resource Block, “PRB” for short), the length ofan orthogonal frequency division multiplexing (Orthogonal FrequencyDivision Multiplexing, “OFDM” for short) symbol, the number of points ofthe Fourier transform such as the fast Fourier transform (Fast FourierTransform, “FFT” for short), or the inverse Fourier transform such asthe inverse fast Fourier transform (Inverse Fast Fourier Transform,“IFFT” for short), used to generate an OFDM signal, the number of OFDMsymbols in a transmission time interval (TTI), the number of TTIsincluded in a specific length of time and the length of the signalprefix.

220, the network device 10 transmits indication information to theterminal device 20.

The indication information is for indicating the transmission banddetermined by the network device 10 for the terminal device 20 so thatthe terminal device 20 determines a numerology for transmitting the dataaccording to the transmission band,

It will be appreciated that, when the network device 10 indicates thetransmission band for the terminal device 20, the network device 10 maydirectly indicate a start position and an end position of thetransmission band or may indicate a relative position of thetransmission band, that is, a relative position of the transmission bandin the divided transmission bands, that is to say, when the networkdevice 10 schedules the terminal device 20 to transmit or receive data,the network device 10 only needs to indicate for the terminal device 20,a relative position of its scheduled resource in a region of aconfigured numerology, without indicating a position of its scheduledresource in the entire carrier,

For example, the network device 10 may divide multiple transmissionbands in terms of the region of the numerology to be configured, andnumber the divided multiple transmission bands, and then directlyindicate on which transmission band the terminal device 20 performs datatransmission using a corresponding numerology. The transmission bandswith different numbers occupy different bandwidths and positions, andthe network device 10 may inform the terminal device 20 in advance, forexample, by means of broadcasting, broadcasting the division of the bandresources and the positions of the divided transmission bands withdifferent numbers. For another example, assuming that the network device10 divides the region of the numerology to be configured into threetransmission bands, that is, the first transmission band, the secondtransmission band, and the third transmission band, where the startposition and the end position of the three transmission bands aredifferent, and subcarrier spacings for data transmission correspondingto respective transmission bands are different, the position of thefirst transmission band is in a lower transmission band relative to thepositions of the other two transmission bands, the position of the thirdtransmission band is in a higher transmission band relative to thepositions of the other two transmission bands, and the secondtransmission band is located between the first transmission band and thethird transmission band. If the indication information indicates thatthe terminal device 20 transmits data in the high band, then theterminal device 20 is located at a position of a relatively highertransmission band, that is, the third transmission band. A subcarrierspacing corresponding to the third transmission band is used fortransmitting the data,

230, the terminal device 20 receives the indication informationtransmitted by the network device 10.

Specifically, the terminal device 20 receives the indication informationtransmitted by the network device 10 to learn the transmission bandconfigured by the network device 10 for the terminal device 20 fortransmitting the data.

240, the terminal device 20 determines a numerology for transmitting thedata according to the indication information.

Specifically, since the numerology configured by the network device 10for the terminal device 20 used for data transmission on thetransmission band may be different from numerologies used for datatransmission on other transmission bands, the terminal device 20 maydetermine a numerology used by the terminal device 20 during datatransmission on the transmission band according to the transmission bandconfigured by the network device 10 for the terminal device 20.Therefore, the terminal device 20 may transmit the data to the networkdevice 10 or receive the data transmitted by the network device 10 onthe transmission band according to the numerology.

For instance, after the network device 10 configures, for the terminaldevice 20, the transmission band for transmitting the data, the networkdevice 10 transmits the indication information indicative of thetransmission band to the terminal device 20. After the terminal device20 receives the indication information, the terminal device 20 maydetermine the numerology used for transmitting the data according to thetransmission band and a correspondence relationship between thetransmission band and the numerology.

In an embodiment, before the terminal device 20 determines thenumerology for transmitting the data according to the transmission band,that is, prior to 220, the method further includes 250 to 270. FIG. 4 isa flow interaction diagram of a method for transmitting data accordingto another embodiment of the present disclosure. As shown in FIG. 4,prior to 220, the method further includes 250 to 270.

250, the network device 10 determines a correspondence relationshipbetween the transmission band and the numerology.

Specifically, after the network device 10 divides an available bandresource into at least one transmission band that can be used for datatransmission, the network device 10 configures a correspondingnumerology for each transmission band. The numerologies used for datatransmission on these transmission bands may be the same or different,and these transmission bands may or may not be adjacent to each other.That is to say, in multiple transmission bands, each transmission bandcorresponds to one numerology, where numerologies corresponding to anytwo transmission bands may be different or the same.

In an embodiment, a guard band may also be included between transmissionband and transmission band, and the terminal device 20 does not transmitthe data on the guard band. Especially, when the numerologies used fordata transmission on two formerly adjacent transmission bands in themultiple transmission bands are different, then a guard band may beinterposed between the two transmission bands, on which the terminaldevice does not transmit the data. Therefore, interference generatedduring data transmission using different numerologies on the twotransmission bands can be avoided.

It will be appreciated that the correspondence relationship between thenumerology and the transmission band may be determined by the networkdevice 10, or may be predetermined between the network device 10 and theterminal device 20.

260, the network device 10 broadcasts configuration information.

The configuration information may include the correspondencerelationship between the transmission band and the numerology so thatthe terminal device 20 determines the numerology for transmitting thedata according to the transmission band and the correspondencerelationship.

Specifically, after the network device 10 determines the correspondencerelationship between the transmission band and the numerology, thenetwork device 10 may broadcast configuration information including thecorrespondence relationship, so that the terminal device 20 determines anumerology corresponding to the transmission band according to thecorrespondence relationship and the transmission band indicated in 220,so as to perform data transmission with the network device 10 on thetransmission band using the numerology.

In an embodiment, the network device 10 may broadcast the configurationinformation in a physical downlink control channel (Physical DownlinkControl Channel, “PDCCH” for short).

In an embodiment, the network device 10 may broadcast the configurationinformation according to a specific time period, and the correspondencerelationship between the transmission band and the numerology includedin the configuration information broadcasted within each time period maydifferent,

Specifically, the network device 10 divides an available transmissionband into multiple transmission bands, and each transmission bandcorresponds to one numerology. Numerologies corresponding to respectivetransmission bands may be the same or different, and transmission bandsmay be adjacent to each other or separated by a guard band. Moreover,the determination of such division and correspondence relationship maybe adjusted according to a specific period. That is to say, the divisionof multiple transmission bands and the numerologies corresponding torespective transmission bands in the current time period may bedifferent from the division of multiple transmission bands and thenumerologies corresponding to respective transmission bands in theprevious time period.

For instance, assuming that, in a previous time period, the networkdevice 10 divides an available band resource into 4 segments fortransmission bands that can be used for transmitting the data accordingto information such as the number of terminal devices within itscoverage, the coverage of the terminal devices, a type of a currentlyperformed service, or a type of currently transmitted data; assumingthat numerologies corresponding to all adjacent transmission bands aredifferent, and a guard band is included between all adjacenttransmission bands. However, in the current time period, since there arechanges in the number of terminal devices in the coverage of the networkdevice 10, the coverage and the type of the performed service, thenetwork device 10 may then divide the band resource again, for example,into 5 segments for transmission bands, where the numerologycorresponding to each segment for transmission band may also bedetermined again.

In an embodiment, the configuration information further includes aduration of the configuration information.

Specifically, the division of the band resource by the network device 10and the numerologies corresponding to respective transmission bands maybe continuously adjusted and changed according to the current networkcondition, for example, may change according to a specific time period,that is to say, the division of the band resource and the correspondingnumerology configured for each transmission band may different duringdifferent time periods. In this way, the network device 10 maybroadcast, according to the current specific situation, the division ofthe band resource suitable for the current situation and thecorresponding numerology configured for each transmission band via theconfiguration information, for example, in a downlink control channel.

Since the division of the band resource by the network device and thecorrespondence relationship between the divided transmission band andthe numerology are very important system information, the network device10 may repeatedly transmit the configuration information in the currenttime period, each time when the configuration information isbroadcasted, a duration of the configuration information may be updated.

For instance, the network device 10 determines the configurationinformation broadcasted in the current time period, for example, between14:00 and 14:30, and determines that the frequency of broadcasting theconfiguration information is for broadcasting every 5 minutes, then theconfiguration information includes the following when the network device10 broadcasts the configuration information at 14:00: positions ofmultiple transmission bands after the band resource is divided, thenumerology corresponding to each transmission band, and a duration ofthe configuration information, or referred to as an effective duration,herein for 30 minutes. After 5 minutes, the network device 10 broadcaststhe configuration information again, that is, when the network device 10broadcasts the configuration information at 14:05, the effectiveduration included in the configuration information becomes 25 minutes,after another 5 minutes, the network device 10 broadcasts theconfiguration information again, that is, when the network device 10broadcasts the configuration information at 14:10, the effectiveduration included in the configuration information becomes 20 minutes,the process is repeated until 14:30 where the network device 10 mayupdate the division of the transmission band and the correspondingnumerology in the configuration information, and recalculate theeffective duration of the updated configuration information in14:30-15:00.

The time that the network device 10 updates the transmission banddivision and the corresponding numerology in the configurationinformation may proceed according to a certain time period, or may beupdated in different lengths of time according to specific conditions.For instance, in the case of late night or in metropolitan suburbs, theusage of the network is relatively stable, the network device 10 may notfrequently update the transmission band division and the correspondingnumerology in the configuration information; however, in the case ofdaytime or in urban central areas or the like, the usage of the networkis relatively frequently variable, the network device 10 may update thetransmission band division and the corresponding numerology in theconfiguration information according to a specific time period, forexample, 30 minutes, to achieve effective use of frequency domainresources.

When the terminal device 20 receives the scheduling from the networkdevice 10, the terminal device 20 may acquire, according to the receivedconfiguration information, information about multiple transmission bandsthat can be used for transmitting the data as well as a numerologycorresponding to each of the multiple transmission bands When theterminal device 20 receives information that is indicative of thetransmission band used by the terminal device 20 for data transmissionand is transmitted by the network device 10, the terminal device 20 maydetermine a numerology currently used for transmitting data according tothe division of the band resource in the current time period and acorrespondence relationship between the divided transmission band andthe numerology, thereby performing data transmission with the networkdevice 10 on the transmission band indicated by the network device 10using the numerology.

270, the terminal device 20 receives the configuration information.

Specifically, the terminal device 20 receives the configurationinformation broadcasted by the network device 10 to learn thecorrespondence relationship between the transmission band and thenumerology.

At this time, in 240, the terminal device 20 determines the numerologyfor transmitting the data according to the indication information,including: the terminal device 20 determines the numerology fortransmitting the data according to the indication information and theconfiguration information.

Specifically, after the terminal device receives the configurationinformation, the terminal device may determine the numerology fortransmitting the data according to the indication information receivedin 230 and the configuration information. Description will be made bytaking the correspondence between the transmission band and thenumerology shown in Table 1 as an example.

TABLE 1 Transmission Band 1^(st) 2^(nd) 3^(rd) 4^(th) transmissiontransmission transmission transmission band band band band 100-160 kHz160-220 kHz 250-310 kHz 370-490 kHz Numerology 15 kHz 15 kHz 30 kHz 60kHz (subcarrier spacing)

Assuming that the numerology includes a subcarrier spacing, the currentnetwork device 10 indicates that the terminal device 20 transmits thedata on the first transmission band, that is, the transmission band of100 kHz-160 kHz, indicates that the terminal device 30 transmits thedata on the second transmission band, that is, the transmission band of160 kHz-220 kHz, and indicates that the terminal device 40 transmits thedata on the third transmission band, that is, the transmission band of250 kHz to 310 kHz. The subcarrier spacing corresponding to the firsttransmission band is 15 kHz, the subcarrier spacing corresponding to thesecond transmission band is 15 kHz, the subcarrier spacing correspondingto the third transmission band is 30 kHz, and the subcarrier spacingcorresponding to the fourth transmission band is 60 kHz.

After the terminal device 20 receives the indication information that isindicative of the first transmission band and is transmitted by thenetwork device 10, the terminal device 20 may determine the numerologyfor transmitting the data according to the correspondence relationship,that is, determine that the subcarrier spacing used for transmitting thedata is 15 kHz, so that the transmission of the data is performed withthe network device 10 by using the subcarrier spacing at 15 kHz on thefirst transmission band; after the terminal device 30 receives theindication information that is indicative of the second transmissionband and is transmitted by the network device 10, the terminal device 30may determine according to the correspondence relationship that thesubcarrier spacing used for transmitting the data is 15 kHz, so that thetransmission of the data is performed with the network device 10 byusing the subcarrier spacing at 15 kHz on the second transmission band;after the terminal device 40 receives the indication information that isindicative of the third transmission band and is transmitted by thenetwork device 10, the terminal device 40 determines according to thecorrespondence relationship that the subcarrier spacing used fortransmitting the data is 30 kHz, so that the transmission of the data isperformed with the network device 10 by using the subcarrier spacing at30 kHz on the third transmission band.

It can be seen from Table 1 that, subcarrier spacings corresponding toboth the first transmission band and the second transmission band are 15kHz, thus a guard band may not be configured between the firsttransmission band and the second transmission band. The subcarrierspacing corresponding to the second transmission band is 15 kHz, whichis different from the subcarrier spacing at 30 kHz corresponding to thethird transmission band. Therefore, a guard band is configured betweenthe second transmission band and the third transmission band, which hasa bandwidth at 30 kHz, so that interference is generated due to the useof different numerologies during data transmission on the secondtransmission band and the third transmission band. Similarly, thesubcarrier spacing corresponding to the third transmission band is also30 kHz, which is different from the subcarrier spacing at 60 kHzcorresponding to the fourth transmission band. Therefore, a guard bandis configured between the third transmission band and the fourthtransmission band, which has a bandwidth at 60 kHz, so that interferenceis generated due to the use of different numerologies during datatransmission on the third transmission band and the fourth transmissionband.

It will be appreciated that, in order to simplify the division of theband resource by the network device 10, sometimes a guard band may alsobe configured between the first transmission band and the secondtransmission band, which is not limited herein. In addition, thebandwidths of these guard bands configured by the network device 10 maybe the same or different, which are not limited herein,

In this way, according to the correspondence relationship between thetransmission band and the numerology, the terminal device 20 maydetermine the numerology for transmitting the data according to thetransmission band as long as the terminal device 20 know thetransmission band for transmitting the data, and there is nointerference during the data transmission.

In an embodiment, the correspondence relationship between thetransmission band and the numerology may include a correspondencerelationship between a transmission band for transmitting uplink dataand the numerology, and/or a correspondence relationship between atransmission band for transmitting downlink data and the numerology.

That is to say, the data transmitted between the terminal device 20 andthe network device 10 may include uplink data or downlink data, and thenumerology used for the uplink data may be different from the numerologyused for the downlink data. If the transmitted data is downlink data,the network device 10 transmits the data to the terminal device 20, andthe configuration information is configuration information forscheduling the downlink data, after the network device 10 transmits thedownlink data to the terminal device 20, the terminal device 20correctly receives the downlink data transmitted by the network device10 according to the configuration information; if the transmitted datais uplink data, the terminal device 20 transmits the data to the networkdevice 10, and the configuration information is configurationinformation for scheduling the uplink data, the terminal device 20transmits the uplink data to the network device 10 according, to theconfiguration information, and the network device 10 receives the uplinkdata transmitted by the terminal device 20. The network device 10 mayfurther include, in the configuration information, both a correspondencerelationship between a transmission band for transmitting uplink dataand the numerology and a correspondence relationship between atransmission band for transmitting downlink data and the numerology.After the terminal device 20 receives the configuration information, theterminal device 20 may determine a transmission band for transmittingthe data in corresponding transmission bands according to whether ittransmits uplink data or downlink data, and transmit the data accordingto the numerology corresponding to the transmission band.

In an embodiment, in 260, the configuration information transmitted bythe network device 10 may further include a correspondence relationshipbetween the numerology and a filtering mode.

If a correspondence relationship between the numerology and a filteringmode is further included in the configuration information, before thenetwork device 10 broadcasts the configuration information, that is,before performing 260, the method further includes: the network device10 determines the correspondence relationship between the numerology andthe filtering mode. After the terminal device 20 receives theconfiguration information, that is, after performing 270, the methodfurther includes: determining, at the terminal device 20, a filteringmode for processing the data according to the numerology.

In an embodiment, the filtering mode may include at least one of: a typeof a baseband filter, a parameter of the baseband filter, a usedfiltered waveform, and a parameter of the filtered waveform.

In a 5G system, data transmitted based on different numerologies may beused in conjunction with different waveforms or filters during basebandprocessing. For instance, common waveforms used in conjunction with anorthogonal frequency division multiplexing (Orthogonal FrequencyDivision Multiplexing, “OFDM” for short) signal are w-OFDM (windowingOFDM) and f-OFDM (filtered OFDM). Taking w-OFDM as an example, the OFDMsignal should be multiplied by a window function in the time domainafter its generation, such as the commonly used raised cosine windoww(n)=0.5{1−cos[*pi*n/(N−1)]}, where n is the time domain sampling timeand N is a configurable parameter. The window function listed above canalso be understood as a time domain filter, where N is a filterparameter.

For instance, the network device 10 indicates for the terminal device 20that the transmission band for transmitting uplink data ranges from 1800kHz to 1830 kHz, the terminal device 20 determines that a subcarrierspacing for transmitting the data is 30 kHz according to thecorrespondence relationship between the transmission band and thenumerology, and determines that a waveform for processing the data isw-OFDM according to a correspondence relationship between the subcarrierspacing and a filtered waveform, so that the terminal device 20processes uplink data to be transmitted according to the w-OFDMwaveform, and transmits the uplink data to the network device 10 at atransmission band from 1800 kHz to 1830 kHz using the subcarrier spacingat 30 kHz. The network device 10 indicates for the terminal device 30that the transmission band for transmitting downlink data ranges from1920 kHz to 2000 kHz, the terminal device 30 determines that thesubcarrier spacing for transmitting the data is 60 kHz according to thecorrespondence relationship between the transmission band and thenumerology, and determines that a waveform for processing the data isf-OFDM according to a correspondence relationship between the subcarrierspacing and a filtered waveform, so that the terminal device 30 receivesdownlink data transmitted by the network device 10 at a transmissionband from 1920 kHz to 2000 kHz according to the subcarrier spacing at 60kHz, and processes the received data according to the f-OFDM waveform,

In an embodiment, according to the method for transmitting data as shownin FIG. 2 and FIG. 4, FIG. 5 shows a method for transmitting dataaccording to another embodiment of the present disclosure, after 270,the method may further include 411 and 421.

411, the network device 10 transmits the data to the terminal device 20according to the configuration information,

Specifically, the network device 10 may transmit the data to theterminal device 20, on the transmission band configured by the networkdevice 10 for the terminal device 20 for transmitting the data,according to a parameter in the numerology.

421, the terminal device 20 receives the data transmitted by the networkdevice 10 according to the configuration information.

Specifically, the terminal device 20 receives the data transmitted bythe network device 10, on the transmission band configured by thenetwork device 10 for the terminal device 20 for transmitting the data,according to a parameter in the numerology.

If a correspondence relationship between the numerology and a filteringmode is further included in the configuration information, after 421,the method further includes: the terminal device 20 processes thereceived data according to the filtering mode.

Specifically, the terminal device 20 filters the received data accordingto a filtering mode indicated in the configuration informationtransmitted by the network device 10, such as a proper type of basebandfilter or a filtered waveform.

In an embodiment. 411 and 421 may also be replaced with 412 and 422 asshown in FIG. 6 respectively. FIG. 6 is a flow interaction diagram of amethod for transmitting data according to another embodiment of thepresent disclosure.

412, the terminal device 20 transmits the data to the network device 10according to the configuration information.

Specifically, the terminal device 20 may transmit the data to thenetwork device 10, on the transmission band configured by the networkdevice 10 for the terminal device 20 for transmitting the data,according to a parameter in the numerology.

422, the network device 10 receives the data transmitted by the terminaldevice 20 according to the configuration information,

Specifically, the network device 10 receives the data transmitted by theterminal device 20, on the transmission band configured by the networkdevice 10 for the terminal device 20 for transmitting the data,according to a parameter in the numerology.

If a correspondence relationship between the numerology and a filteringmode is further included in the configuration information, before 421,the method further includes: the terminal device 20 processes the datato be transmitted according to the filtering mode.

Specifically, the terminal device 20 filters the data to be transmittedaccording to a filtering mode indicated in the configuration informationtransmitted by the network device 10 such as a proper type of basebandfilter or a filtered waveform, and transmits the processed data to thenetwork device.

It will be appreciated that the data transmission between the networkdevice 10 and the terminal device 20 in the embodiments of the presentdisclosure may include transmission of service data and may also includetransmission of control signaling, which is not limited herein.

Therefore, according to the method in the embodiments of the presentdisclosure, the terminal device may learn the numerology fortransmitting the data according to the transmission band indicated bythe network device, without receiving the numerology used for thecurrently performed data transmission transmitted by the network device,thus downlink signaling overhead can be saved.

FIG. 7 shows a schematic flowchart of a method for transmitting dataaccording to another embodiment of the present disclosure. The methodillustrated in FIG. 7 may be performed by the network device 10,including:

701, the network device 10 divides an available band resource into atleast one transmission band according to the current network condition.

702, the network device 10 determines a correspondence relationshipbetween the at least one transmission band and at least one numerology.

703, the network device 10 broadcasts configuration information, wherethe configuration information includes the correspondence relationship.

Specifically, the network device 10 may divide an available bandresource into at least one transmission band that can be used fortransmitting the data according to information such as the number ofterminal devices within its coverage, the coverage of the terminaldevices, information about a key band in a carrier, a type of acurrently performed service, or a type of currently transmitted data.Each transmission band corresponds to one numerology, and numerologiesused for data transmission on these transmission bands are thenumerologies corresponding to the transmission bands. The numerologiesused for data transmission on these transmission bands may be the sameor different, and these transmission bands may or may not be adjacent toeach other. After the network device 10 determines the correspondencerelationship between the at least one transmission band and the at leastone numerology, the network device 10 may broadcast the correspondencerelationship by means of broadcasting, so that all the terminal deviceswithin its coverage may learn the correspondence relationship betweenthe at least one transmission band and the at least one numerology.

For instance, as shown in Table 1, assuming that the network device 10divides the available band resource into four transmission bands thatcan be used for transmitting the data, where each transmission bandcorresponds to one numerology. Assuming that the numerology includes asubcarrier spacing. The network device 10 may determine that thesubcarrier spacing used for data transmission on the first transmissionband (that is, the transmission band of 100 kHz-160 kHz) is 15 kHz; thesubcarrier spacing used for data transmission on the second transmissionband (that is, the transmission band of 160 kHz-220 kHz) is 15 kHz; thesubcarrier spacing used for data transmission on the third transmissionband (that is, the transmission band of 250 kHz-310 kHz) is 30 kHz; thesubcarrier spacing used for data transmission on the fourth transmissionband (that is, the transmission band of 370 kHz-490 kHz) is 60 kHz.

In this way, scheduling of data transmission that is based on differenttransmission bands may be achieved with different numerologies, whichincrease flexibility of control signaling design.

Furthermore, by broadcasting division of the band resource and thenumerology used when transmitting data on the divided transmission band,the network device allows the terminal device to not need to receiveinformation that is indicative of the numerology used in the currentdata transmission and is transmitted by the network device, therebydownlink signaling overhead can be saved.

It will be appreciated that the correspondence relationship between thenumerology and the transmission band may be determined by the networkdevice 10, or may be predetermined between the network device 10 and theterminal device 20.

In an embodiment, the configuration information further includes aduration of the configuration information.

Specifically, Since the division of the band resource by the networkdevice 10 and the correspondence relationship between the dividedtransmission band and the numerology are very important systeminformation, the network device 10 may repeatedly transmit theconfiguration information in the current time period, each time when theconfiguration information is broadcasted, a duration of theconfiguration information may be updated. Here, the configurationinformation may also include the duration of the configurationinformation.

In an embodiment, the at least one transmission band may be configuredfor transmitting uplink data and/or downlink data.

Specifically, the correspondence relationship between the at least onetransmission band and the at least one numerology may include acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology. If the transmitted data is downlink data, the configurationinformation is configuration information for scheduling the downlinkdata. After the network device 10 transmits the downlink data to theterminal device 20, the terminal device 20 correctly receives thedownlink data transmitted by the network device 10, on the indicatedtransmission band by using an appropriate numerology, according to theindication information indicative of the position of the transmissionband and the configuration information. If the transmitted data isuplink data, the configuration information is configuration informationfor scheduling the uplink data. The terminal device 20 transmits theuplink data to the network device 10, on the indicated transmission bandby using an appropriate numerology, according to the indicationinformation indicative of the transmission band and the configurationinformation, and the network device 10 receives the uplink datatransmitted by the terminal device 20.

In an embodiment, the configuration information further includes acorrespondence relationship between the at least one numerology and atleast one filtering mode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, a guard band is included between the at least onetransmission band, for example, a guard band is included between any oftwo transmission bands when there are two or more transmission bands.The high frequency end and the low frequency end of the guard band arerespectively adjacent to a transmission band used for data transmittedbased on different numerologies, and the terminal device 20 will nottransmit or receive the data within the guard band.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

For a detailed description of the configuration information, referencemay be made to the description of the configuration information in 250and 260 of FIG. 4, and details will not be described herein for brevity.

It will be appreciated that, in various embodiments of the presentdisclosure, the sequence numbers of the above processes do not imply anorder of execution, and the order of execution of each process should bedetermined by its function and internal logic, but not intend to limitimplementations of the embodiments of the present disclosure.

The method for transmitting data according to the embodiments of thepresent disclosure has been described in detail above, and the networkdevice and the terminal device according to the embodiments of thepresent disclosure will be described hereunder. It will be appreciatedthat the network device and the terminal device in the embodiments ofthe present disclosure may perform various methods in the foregoingembodiments of the present disclosure, that is, for specific workingprocesses of the following various devices, reference may be made tocorresponding processes in the foregoing method embodiments.

FIG. 8 shows a schematic block diagram of a terminal device 800according to an embodiment of the present disclosure. As shown in FIG.8, the terminal device 800 includes a transmission module 801 and adetermining module 802.

The transmission module 801 is configured to receive indicationinformation transmitted by a network device, where the indicationinformation is for indicating a transmission band for transmitting thedata.

The determining module 802 is configured to determine a numerology fortransmitting the data according to the transmission band determined bythe transmission module 801.

The transmission module 801 is further configured to transmit the datato the network device or receive the data transmitted by the networkdevice on the transmission band according to the numerology determinedby the determining module 802.

Therefore, the terminal device may learn the numerology for transmittingthe data according to the transmission band indicated by the networkdevice, without receiving the numerology used for the currentlyperformed data transmission transmitted by the network device, thusdownlink signaling overhead can be saved.

In an embodiment, before the determining module 802 determines thenumerology for transmitting the data according to the transmission band,the transmission module 801 is further configured to: receiveconfiguration information broadcasted by the network device, where theconfiguration information includes a first correspondence relationshipbetween the transmission band and the numerology; the determining module802 is specifically configured to: determine the numerology fortransmitting the data according to the transmission band and the firstcorrespondence relationship between the transmission band and thenumerology.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

In an embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode, after the determining module 802 determines thenumerology for transmitting the data according to the transmission band,the determining module 802 is further configured to: determine afiltering mode corresponding to the numerology according to thenumerology and the second correspondence relationship between thenumerology and the filtering mode; the transmission module 801 isspecifically configured to: process the data according to the filteringmode, and transmit the processed data to the network device on thetransmission band according to the numerology: or receive the datatransmitted by the network device on the transmission band according tothe numerology, and process the received data according to the filteringmode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, a guard band is included between the transmission bandand a transmission band indicated by the network device for a secondterminal device.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

It should be noted that, in the embodiments of the present disclosure,the transmission module 801 may be implemented by a transceiver. Asshown in FIG. 9, a terminal device 900 may include a processor 910, atransceiver, and a memory 930. The transceiver may include a receiver921 and a transmitter 922. The memory 930 may be configured to storerelated information such as a numerology, a filtering mode, and thelike, which may also be configured to store codes executed by theprocessor 910, and the like. Components in the terminal device 900 arecoupled together via a bus system 940 which, in addition to a data bus,also includes a power bus, a control bus, a status signal bus, and thelike.

The receiver 921 is configured to receive indication informationtransmitted by a network device, where the indication information is forindicating a transmission band for transmitting the data. The processor910 is configured to determine a numerology for transmitting the dataaccording to the transmission band. The transmitter 922 is furtherconfigured to transmit the data to the network device or receive thedata transmitted by the network device on the transmission bandaccording to the numerology.

In an embodiment, before the processor 910 determines the numerology fortransmitting the data according to the transmission band, the receiver921 is further configured to: receive configuration informationbroadcasted by the network device, where the configuration informationincludes a first correspondence relationship between the transmissionband and the numerology; the processor 910 is specifically configuredto: determine the numerology for transmitting the data according to thetransmission band and the first correspondence relationship between thetransmission band and the numerology.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

In an embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode, after the processor 910 determines the numerology fortransmitting the data according to the transmission band, the processor910 is further configured to: determine a filtering mode correspondingto the numerology according to the numerology and the secondcorrespondence relationship between the numerology and the filteringmode; the transmitter 922 is specifically configured to: process thedata according to the filtering mode, and transmit the processed data tothe network device on the transmission band according to the numerology;or receive the data transmitted by the network device on thetransmission band according to the numerology, and process the receiveddata according to the filtering mode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, a guard band is included between the transmission bandand a transmission band indicated by the network device for a secondterminal device.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

FIG. 10 is a schematic structural diagram of a system chip according toan embodiment of the present disclosure. The system chip 1000 of FIG. 10includes an input interface 1001, an output interface 1002, at least oneprocessor 1003, and a memory 1004. The input interface 1001, the outputinterface 1002, the processor 1003, and the memory 1004 are connectedvia a bus 1005. The processor 1003 is configured to execute codes in thememory 1004, when the codes are executed, the processor 1003 implementsthe method performed by the terminal device 20 in FIG. 2 to FIG. 6.

The terminal device 800 as shown in FIG. 8 or the terminal device 900 asshown in FIG. 9 or the system chip 1000 as shown in FIG. 10 canimplement various processes implemented by the terminal device 20 in theforegoing method embodiments of FIG. 2 to FIG. 6, and details will beomitted to avoid repetition.

FIG. 11 shows a schematic block diagram of a network device 1100according to an embodiment of the present disclosure. As shown in FIG.11, the network device 1100 includes a determining module 1101 and atransmission module 1102.

The determining module 1101 is configured to determine a transmissionband for transmitting the data,

The transmission module 1102 is configured to transmit indicationinformation to a first terminal device, where the indication informationis for indicating the transmission band determined by the determiningmodule 1101 so that the first terminal device determines a numerologyfor transmitting the data according to the transmission band.

The transmission module 1102 is further configured to receive the datatransmitted by the first terminal device or transmit the data to thefirst terminal device on the transmission band determined by thedetermining module 1101.

Therefore, the terminal device may learn the numerology for transmittingthe data according to the transmission band indicated by the networkdevice, without transmitting the numerology used for the currentlyperformed data transmission to the terminal device, thus downlinksignaling overhead can be saved.

In an embodiment, before the transmission module 1102 transmits theindication information to the first terminal device, the determiningmodule 1101 is further configured to: determine a first correspondencerelationship between the transmission band and the numerology; thetransmission module 1102 is further configured to broadcastconfiguration information, where the configuration information includesthe first correspondence relationship so that the first terminal devicedetermines the numerology for transmitting the data according to thetransmission band and the first correspondence relationship.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

In an embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode so that the first terminal device determines a filteringmode for processing the data according to the second correspondencerelationship between the numerology and the filtering mode; before thetransmission module 1102 broadcasts the configuration information, thedetermining module 1101 is further configured to: determine the secondcorrespondence relationship between the numerology and the filteringmode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, a guard band is included between the transmission bandand a transmission band indicated by the network device for a secondterminal device.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

In an embodiment, the determining module 1101 is specifically configuredto: determine the numerology for transmitting the data from predefinedmultiple numerologies.

It should be noted that, in the embodiments of the present disclosure,the determining module 1101 may be implemented by a processor, and thetransmission module 1102 may be implemented by a transceiver. As shownin FIG. 12, a network device 1200 may include a processor 1210, atransceiver, and a memory 1230. The transceiver may include a receiver1221 and a transmitter 1222. The memory 1230 may be configured to storerelated information such as a numerology, a guard band, a filteringmode, and the like, which may also be configured to store codes executedby the processor 1210, and the like. Components in the network device1200 are coupled together via a bus system 1240 which, in addition to adata bus, also includes a power bus, a control bus, a status signal bus,and the like.

The processor 1210 is specifically configured to determine atransmission band for transmitting the data. The transmitter 1222 isconfigured to: transmit indication information to a first terminaldevice, where the indication information is for indicating thetransmission band so that the first terminal device determines anumerology for transmitting the data according to the transmission band;and receive the data transmitted by the first terminal device ortransmit the data to the first terminal device on the transmission band.

In an embodiment, before the transmitter 1222 transmits the indicationinformation to the first terminal device, the processor 1210 is furtherconfigured to: determine a first correspondence relationship between thetransmission band and the numerology; the transmitter 1222 is furtherconfigured to broadcast configuration information, where theconfiguration information includes the first correspondence relationshipso that the first terminal device determines the numerology fortransmitting the data according to the transmission band and the firstcorrespondence relationship.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the first correspondence relationship includes acorrespondence relationship between a transmission band for transmittinguplink data and the numerology, and/or a correspondence relationshipbetween a transmission band for transmitting downlink data and thenumerology.

In an embodiment, the configuration information further includes asecond correspondence relationship between the numerology and afiltering mode so that the first terminal device determines a filteringmode for processing the data according to the second correspondencerelationship between the numerology and the filtering mode; before thetransmitter 1222 broadcasts the configuration information, the processor1210 is further configured to: determine the second correspondencerelationship between the numerology and the filtering mode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, a guard band is included between the transmission bandand a transmission band indicated by the network device for a secondterminal device.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

In an embodiment, the processor 1210 is specifically configured to:determine the numerology for transmitting the data from predefinedmultiple numerologies.

FIG. 13 is a schematic structural diagram of a system chip according toan embodiment of the present disclosure. The system chip 1300 of FIG. 13includes an input interface 1301, an output interface 1302, at least oneprocessor 1303, and a memory 1304. The input interface 1301, the outputinterface 1302, the processor 1303, and the memory 1304 are connectedvia a bus 1305. The processor 1303 is configured to execute codes in thememory 1304, when the codes are executed, the processor 1303 implementsthe method performed by the network device 10 in FIG. 2 to FIG. 6.

The network device 1100 as shown in FIG. 11 or the network device 1200as shown in FIG. 12 or the system chip 1300 as shown in FIG. 13 canimplement various processes implemented by the network device 10 in theforegoing method embodiments of FIG. 2 to FIG. 6, and details will beomitted to avoid repetition.

FIG. 14 shows a schematic block diagram of a network device 1400according to another embodiment of the present disclosure. As shown inFIG. 14, the network device 1400 includes a dividing module 1401, adetermining module 1402 and a transmission module 1402.

The dividing module 1401 is configured to divide an available bandresource into at least one transmission band.

The determining module 1402 is configured to determine a correspondencerelationship between the at least one transmission band and at least onenumerology.

The transmission module 1403 is configured to broadcast configurationinformation, where the configuration information includes thecorrespondence relationship.

Therefore, for the network device in the embodiments of the presentdisclosure, scheduling of data transmission that is based on differenttransmission bands may be achieved with different numerologies, whichincrease flexibility of control signaling design.

in addition, by broadcasting division of the band resource and thenumerology used for transmitting the data on the divided transmissionband, the network device allows the terminal device to not need toreceive information that is indicative of the numerology used in thecurrent data transmission and is transmitted by the network device,thereby downlink signaling overhead can be saved.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the at least one transmission band is configured fortransmitting uplink data and/or downlink data.

In an embodiment, the configuration information further includes acorrespondence relationship between the at least one numerology and atleast one filtering mode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, a guard band is included between the at least onetransmission band.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

It should be noted that, in the embodiments of the present disclosure,the dividing module 1401 and the determining module 1402 may beimplemented by a processor, and the transmission module 1403 may beimplemented by a transceiver. As shown in FIG. 15, a network device 1500may include a processor 1510, a transceiver, and a memory 1530. Thetransceiver may include a receiver 1521 and a transmitter 1522. Thememory 1530 may be configured to store related information such as anumerology, a guard band, a filtering mode, and the like, which may alsobe configured to store codes executed by the processor 1510, and thelike. Components in the network device 1500 are coupled together via abus system 1540 which, in addition to a data bus, also includes a powerbus, a control bus, a status signal bus, and the like.

The processor 1510 is configured to: divide an available band resourceinto at least one transmission band; and determine a correspondencerelationship between the at least one transmission band and at least onenumerology. The transmitter 1522 is configured to broadcastconfiguration information, where the configuration information includesthe correspondence relationship.

In an embodiment, the indication information is for indicatinginformation on a relative position of the transmission band in multipletransmission bands, or for indicating a start position and an endposition of the transmission band.

In an embodiment, the configuration information further includes aduration of the configuration information.

In an embodiment, the at least one transmission band is configured fortransmitting uplink data and/or downlink data.

In an embodiment, the configuration information further includes acorrespondence relationship between the at least one numerology and atleast one filtering mode.

In an embodiment, the filtering mode includes at least one of: a type ofa baseband filter, a parameter of the baseband filter, a used filteredwaveform, and a parameter of the filtered waveform.

In an embodiment, a guard band is included between the at least onetransmission band.

In an embodiment, a bandwidth of the guard band is an integer multipleof the minimum subcarrier spacing supported by the network device.

In an embodiment, the numerology includes a subcarrier spacing.

FIG. 16 is a schematic structural diagram of a system chip according toan embodiment of the present disclosure. The system chip 1600 of FIG. 16includes an input interface 1601, an output interface 1602, at least oneprocessor 1603, and a memory 1604. The input interface 1601, the outputinterface 1602, the processor 1603, and the memory 1604 are connectedvia a bus 1605. The processor 1603 is configured to execute codes in thememory 1604, when the codes are executed, the processor 1603 implementsthe method performed by the network device 10 in FIG. 2 to FIG. 6.

The network device 1400 as shown in FIG. 14 or the network device 1500as shown in FIG. 15 or the system chip 1600 as shown in FIG. 16 canimplement various processes implemented by the network device 10 in theforegoing method embodiments of FIG. 2 to FIG. 7, and details will beomitted to avoid repetition.

It can be understood that the processor in the embodiments of thepresent disclosure may be an integrated circuit chip with signalprocessing capability. During implementations, each step of theforegoing method embodiments may be completed by an integrated logiccircuit of hardware in the processor or an instruction in a form ofsoftware. The above processor may be a general-purpose processor, adigital signal processor (Digital Signal Processor, “DSP” for short), anapplication specific integrated circuit (Application

Specific Integrated Circuit, “ASIC” for short), a field programmablegate array (Field Programmable Gate Array, “FPGA” for short) or otherprogrammable logic devices, discrete gate or transistor logic devices,discrete hardware components. The methods, steps, and logical blockdiagrams disclosed in the embodiments of the present disclosure may beimplemented or performed. The general purpose processor may be amicroprocessor or the processor may also be any conventional processoror the like. The steps of the methods disclosed in the embodiments ofthe present disclosure may be directly implemented by the hardwaredecoding processor, or may be performed by a combination of hardware andsoftware modules in the decoding processor. The software module may belocated in a mature storage medium of the art, such as a random accessmemory, a flash memory, a read only memory, a programmable read onlymemory, an electrically erasable programmable memory, a register, or thelike. The storage medium is located in the memory. The processor readsinformation in the memory and performs the steps of the above methods incombination with its hardware.

It can be understood that the memory in the embodiments of the presentdisclosure may be a volatile memory or a non-volatile memory, or mayinclude both the volatile memory and the non-volatile memory. Thenon-volatile memory may be a read-only memory (Read-Only Memory, “ROM”for short), a programmable read only memory (Programmable ROM, “PROM”for short), or an erasable programmable read only memory (Erasable PROM,“EPROM” for short), an electrically erasable programmable read onlymemory (Electrically EPROM, “EEPROM” for short) or a flash memory. Thevolatile memory may be a random access memory (Random Access Memory,“RAM” for short), which is used as an external cache. By way ofexemplary but not restrictive illustration, many forms of RAMs may beavailable, such as a static random access memory (Static RAM, “SRAM” forshort), a dynamic random access memory (Dynamic RAM, “DRAM” for short),a synchronous dynamic random access memory (Synchronous DRAM, “SDRAM”for short), a double data rate synchronous dynamic random access memory(Double Data Rate SDRAM, “DDR SDRAM” for short), an enhanced synchronousdynamic random access memory (Enhanced SDRAM, “ESDRAM” for short), asynchlink dynamic random access memory (Synchlink DRAM, “SLDRAM” forshort) and a direct Rambus random access memory (Direct Rambus RAM, “DRRAM” for short). It should be noted that the memories of the systems andmethods described herein are intended to include, but are not limited tothese and any other suitable types of memories.

Additionally, the terms such as “system” and “network” herein are usedinterchangeably herein. The term such as “and/or” herein is merely anassociation relationship between associated objects, which indicatesthat there may be three relationships, for example, A and/or B mayindicate presence of A only, of both A and B, and of B only. Inaddition, the character “/” herein generally indicates that contextualobjects have an “or” relationship.

It will be appreciated that, in the embodiments of the presentdisclosure, “B corresponding to A” means that B is associated with A,and B may be determined according to A. However, it will also beappreciated that the determining B according to A does not mean that Bis determined solely from A, but that B may also be determined accordingto A and/or other information.

It may be known to persons of ordinary skill in the art that, the unitsand the algorithm steps of each example that are described withreference to the embodiments disclosed herein may be implemented byelectronic hardware or a combination of computer software and electronichardware. The situation whether these functions are performed byhardware or software depends on specific applications and designconstraints of the technical solutions. Persons skilled in the art mayimplement the described functions by using different methods for eachspecific application, and such implementation should not be regarded asgoing beyond the scope of the present disclosure.

It may be clearly understood by a person skilled in the art that, forthe purpose of convenient and brief description, for detailed workingprocesses of the foregoing systems, apparatuses, and units, referencemay be made to the corresponding process in the foregoing methodembodiments, and details will not be described herein again.

In several embodiments provided in the present disclosure, it should beunderstood that the disclosed systems, apparatuses, and methods may beimplemented in other manners. For example, the described apparatusembodiments are merely exemplary. For instance, the division of theunits is merely a division of logical functions and there may be otherdivisions during actual implementations. For instance, multiple units orcomponents may be combined or integrated into another system, or somefeatures may be omitted or not performed. In addition, the displayed ordiscussed mutual couplings or direct couplings or communicationconnections may be implemented through some interfaces. The indirectcouplings or communication connections between the apparatuses or unitsmay be implemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and parts displayed as units may or may not be physical units,that is, may be located in one position, or may be distributed onmultiple network units. A part or all of the units may be selectedaccording to actual needs to achieve the objectives of the solutions ofthe embodiments.

In addition, functional units in the embodiments of the presentdisclosure may be integrated into one processing unit, or each of theunits may exist alone physically, or two or more units are integratedinto one unit.

If the functions are implemented in a form of a software functional unitand sold or used as an independent product, the functions may be storedin a computer-readable storage medium. Based on such an understanding,the technical solutions of the present disclosure essentially, or thepart contributing to the prior art, or a part of the technical solutionsmay be implemented in a form of a software product. The computersoftware product is stored in a storage medium, and includes severalinstructions for enabling a computer device (which may be a personalcomputer, a server, or a network device, and the like) to perform all ora part of the steps of the methods described in the embodiments of thepresent disclosure. The foregoing storage medium includes: any mediumthat can store program codes, such as a USB flash disk, a mobile harddisk, a read-only memory (Read-Only Memory, “ROM” for short), a randomaccess memory (Random Access Memory, “R AM” for short), a magnetic disk,or an optical disc, and the like.

The above descriptions are merely specific embodiments of the presentdisclosure; however, the protection scope of the present disclosure isnot limited thereto. Any modification or replacement that may be readilyconsidered by persons skilled in the art within the technical scopedisclosed in the present disclosure should fall into the protectionscope of the present disclosure. Thus, the protection scope of thepresent disclosure shall be subject to the protection scope of theclaims.

What is claimed is:
 1. A method for transmitting data, comprising:receiving, by a first terminal device, indication informationtransmitted by a network device, wherein the indication information isfor indicating a transmission band for transmitting the data; receiving,by the first terminal device, a configuration information broadcasted bythe network device, wherein the configuration information comprises afirst correspondence relationship between a transmission band and anumerology; determining, by the first terminal device, a numerology fortransmitting the data according to the transmission band and the firstcorrespondence relationship; and transmitting, by the first terminaldevice, the data to the network device on the transmission bandaccording to the numerology, or receiving, by the first terminal device,the data transmitted by the network device on the transmission bandaccording to the numerology.
 2. The method according to claim 1, whereinthe configuration information further comprises a duration of theconfiguration information, and wherein the first correspondencerelationship comprises at least one of a correspondence relationshipbetween a transmission band for transmitting uplink data and thenumerology and a correspondence relationship between a transmission bandfor transmitting downlink data and the numerology.
 3. The methodaccording, to claim 1, wherein the configuration information furthercomprises a second correspondence relationship between the numerologyand a filtering mode, after the determining, by the first terminaldevice, the numerology for transmitting the data according to thetransmission band, the method further comprising: determining, by thefirst terminal device, a filtering mode corresponding to the numerologyaccording to the numerology and the second correspondence relationship;wherein the transmitting, by the first terminal device, the data to thenetwork device on the transmission band according to the numerology, orreceiving, by the first terminal device. the data transmitted by thenetwork device on the transmission band according to the numerologycomprises: processing, by the first terminal device, the data according,to the filtering mode, and transmitting the processed data to thenetwork device on the transmission band according to the numerology; orreceiving, by the first terminal device, the data transmitted by thenetwork device on the transmission band according to the numerology, andprocessing, by the first terminal device, the received data according tothe filtering mode.
 4. The method according to claim 3, wherein thefiltering, mode comprises at least one of: a type of a baseband filter,a parameter of the baseband filter, a used filtered waveform, and aparameter of the filtered waveform.
 5. The method according to claim 1,wherein the indication information is for indicating information on arelative position of the transmission band in multiple transmissionbands, or for indicating a start position and an end position of thetransmission band.
 6. The method according to claim 1, wherein a guardband is comprised between the transmission band and a transmission bandindicated by the network device for a second terminal device, andwherein a bandwidth of the guard band is an integer multiple of theminimum subcarrier spacing supported by the network device.
 7. Themethod according to claim 1, wherein the numerology comprises at leastone of a subcarrier spacing, a number of subcarriers under a specificbandwidth, a number of subcarriers in physical resource block (PRB), alength of orthogonal frequency division multiplexing (OFDM) symbol, anumber of points of fast Fourier transform (FFT) or inverse fast Fouriertransform (IFFT), a number of OFDM symbols in transmission time interval(TTI), a number of TTIs comprised in a specific length of time and alength of a signal prefix.
 8. A method for transmitting data,comprising: determining, by a network device, a transmission band fortransmitting the data; determining, by the network device, a firstcorrespondence relationship between a transmission band and anumerology; broadcasting, by the network device, a configurationinformation, wherein the configuration information comprises the firstcorrespondence relationship; transmitting, by the network device,indication information to a first terminal device, wherein theindication information is for indicating the transmission band so thatthe first terminal device determines a numerology for transmitting thedata according to the transmission band and the first correspondencerelationship; and receiving, by the network device, the data transmittedby the first terminal device on the transmission band, or transmitting,by the network device, the data to the first terminal device on thetransmission band.
 9. The method according to claim 8, wherein theconfiguration information further comprises a duration of theconfiguration information, and wherein the first correspondencerelationship comprises at least one of a correspondence relationshipbetween a transmission band for transmitting uplink data and thenumerology and a correspondence relationship between a transmission bandfor transmitting downlink data and the numerology.
 10. The methodaccording to claim 8, wherein the configuration information furthercomprises a second correspondence relationship between the numerologyand a filtering mode so that the first terminal device determines afiltering mode for processing the data according to the secondcorrespondence relationship; before the broadcasting, by the networkdevice, the configuration information, the method further comprising:determining, by the network device, the second correspondencerelationship,
 11. The method according to claim 10, wherein thefiltering mode comprises at least one of: a type of a baseband filter, aparameter of the baseband filter, a used filtered waveform, and aparameter of the filtered waveform.
 12. The method according to claim 8,wherein the indication information is for indicating information on arelative position of the transmission band in multiple transmissionbands, or for indicating a start position and an end position of thetransmission band.
 13. The method according to claim 8, wherein a guardband is comprised between the transmission band and a transmission bandindicated by the network device for a second terminal device, andwherein a bandwidth of the guard band is an integer multiple of theminimum subcarrier spacing supported by the network device.
 14. Themethod according to claim 8, wherein the numerology comprises at leastone of a subcarrier spacing, a number of subcarriers under a specificbandwidth, a number of subcarriers in physical resource block (PRB), alength of orthogonal frequency division multiplexing (OFDM) symbol, anumber of points of fast Fourier transform (FFT) or inverse fast Fouriertransform (IFFT), a number of OFDM symbols in transmission time interval(TTI), a number of TTIs comprised in a specific length of time and alength of a signal prefix.
 15. The method according to claim 8, whereinbefore the determining, by the network device, the transmission band fortransmitting the data, the method further comprising: dividing, by thenetwork device, an available band resource into the at least onetransmission band.
 16. A terminal device, comprising a processor and amemory storing instructions thereon, the processor when executing theinstructions, being configured to: receive indication informationtransmitted by a network device wherein the indication information isfor indicating a transmission band for transmitting data; receiveconfiguration information broadcasted by the network device, wherein theconfiguration information comprises a first correspondence relationshipbetween a transmission band and a numerology; determine the numerologyfor transmitting the data according to the transmission band and thefirst correspondence relationship transmit the data to the networkdevice on the transmission band according to the numerology determinedby the determining module or receive the data transmitted by the networkdevice on the transmission band according to the numerology determinedby the determining module.
 17. The terminal device according to claim16, wherein the configuration information further comprises a durationof the configuration information, and wherein the first correspondencerelationship comprises at least one of a correspondence relationshipbetween a transmission band for transmitting uplink data and thenumerology and a correspondence relationship between a transmission bandfor transmitting downlink data and the numerology.
 18. The terminaldevice according to claim 16, wherein the indication information is forindicating information on a relative position of the transmission bandin multiple transmission bands, or for indicating a start position andan end position of the transmission band.
 19. The terminal deviceaccording to claim 16, wherein a guard band is comprised between thetransmission band and a transmission band indicated by the networkdevice for a second terminal device, and wherein a bandwidth of theguard band is an integer multiple of the minimum subcarrier spacingsupported by the network device.
 20. The terminal device according toclaim 16, wherein the numerology comprises at least one of a subcarrierspacing, a number of subcarriers under a specific bandwidth, a number ofsubcarriers in physical resource block (PRB), a length of orthogonalfrequency division multiplexing (OFDM) symbol, a number of points offast Fourier transform (FFT) or inverse fast Fourier transform (IFFT), anumber of OFDM symbols in transmission time interval (TTI), a number ofTTIs comprised in a specific length of time and a length of a signalprefix.